> > sometimes he can use a numeric or int array, sometimes he have to > select text array. Target type is selected by user, and cast fail when > conversion is not possible. >
using a some selected type (for array field) allows a processing in plpgsql. motivation for this feature is simplification and speedup similar requests like this http://stackoverflow.com/questions/7711432/how-to-set-value-of-composite-variable-field-using-dynamic-sql/7722575#7722575 Pavel -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
